如何以编程方式检查 iOS 应用程序中是否存在键盘?
问题描述:
我需要在我的 iOS 应用中检查键盘可见性的情况.
I need to check the condition of keyboard visibility in my iOS app.
伪代码:
if(keyboardIsPresentOnWindow) {
//Do action 1
}
else if (keyboardIsNotPresentOnWindow) {
//Do action 2
}
我如何检查这种情况?
答
...或采取简单的方法:
…or take the easy way:
当您输入 textField 时,它会成为第一响应者并出现键盘.您可以使用 [myTextField isFirstResponder]
检查键盘的状态.如果返回YES
,则键盘处于活动状态.
When you enter a textField, it becomes first responder and the keyboard appears.
You can check the status of the keyboard with [myTextField isFirstResponder]
. If it returns YES
, then the the keyboard is active.